net: trans_start cleanups

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index d0cb372a0f0d..4ba72933f0da 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -1716,8 +1716,6 @@ static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
         RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
                    tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
 
-        dev->trans_start = jiffies;
-
         tp->cur_tx++;
 
         if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)